Answer:
![[0,Z_n]](https://tex.z-dn.net/?f=%5B0%2CZ_n%5D)
Step-by-step explanation:
Z = the sales tax percentage for a randomly selected amazon purchase, where n = the total number of possible sales tax percentages for online purchases
Since Amazon is an online purchase, The set of possible values for the variable is a positive real number. It is a positive real number that must be within
. It cannot exceed the tax percentage for online purchases that can be found in Amazon.
is a set of online purchases that can be found on Amazon, therefore the set of possible values for the variable is ![[0,Z_n]](https://tex.z-dn.net/?f=%5B0%2CZ_n%5D)
Answer:
I think is is a bit b
Step-by-step explanation:
a or b
Answer:
46th term is 36.
Step-by-step explanation:
we need to subtract like this..
251-5=246,246-5=241.likewise the 46th term is 36
Answer:
Under 99% confidence level we can say that mean speed of the new chips is greater than that of the old chips
Step-by-step explanation:
: Mean speed of the new chip is the same as the old chip
: Mean speed of the new chip is greater than the old chip
to calculate the z-statistic we can use the formula:
z=
if we put the numbers then
z=
=4.8171
The probability of this z-statistic is < 0.001 Therefore Under 99% confidence level we can say that mean speed of the new chips is greater than that of the old chips